GIVEN STRING IS PALINDROME OR NOT

Aim:

To write a shell program to check whether the given string is palindrome or

Algorithm:

1.Enter the input.
 2. Find the length of the given string.
 3.Using while ioop until the length is greater than zero do the following step 4.
 4.temp = expr $11 cut — c $len
    len is decremented by 1.
 5.If the reverse string is equal to input string,print the given string is palindrome else not    palindrome.

Program:

rev =” “
len=’expr$1 Iwc—c
while [ $len — ge 0]

do

temp=’expr$1 Icut—c$len’ len = ‘expr $ len — 1’
rev = ‘echo $rev $temp’ done
if [ $i = $rev]

then
echo “The Given string is palindrome”

else

echo “Non palindrome”

fi

Input & Output

MalayalaM
The Given string is palindrome

Result:

Thus the program is written and executed to check the given string is
palindrome or not.